Production of durable self-compacting concrete using ladle furnace slag (LFS) as filler material

摘要

Ladle furnace slag (LFS) is a by-product of the steel making process. In this paper ladle furnace slag was used as filler material for the production of self-compacting concrete mixtures of different strength classes. Different contents of ladle furnace slag filler, ranging from 45 to 92.5 kg/m3 were incorporated. The produced concretes were tested in the fresh state for fluidity, passing ability and resistance to segregation and in the hardened state for compressive strength, carbonation and chloride penetration resistance. The test results showed that ladle furnace slag can be used as filler for producing self-compacting concretes with enhanced durability characteristics resulting this way to lower cost environmentally friendly durable concrete mixtures.